One vertex per element, one color per generator, with an edge from x to x·s.
(2,6,7,8)(9,10,12,14,13,15,11,16)(17,18)(19,25,27,22)(20,23)(21,24)(26,31,32,29)(28,30)(1,2)(3,6)(4,8)(5,7)(10,14)(11,12)(15,16)(17,19)(18,22)(20,26)(21,27)(23,29)(24,25)(28,32)(30,31) involution — undirected(10,15)(14,16)(17,20,21,28)(18,23,24,30)(19,26,27,32)(22,29,25,31)(1,3,5,4)(2,6,7,8)(18,24)(22,25)(23,30)(29,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.